Battery pack



FIG. 1 is a top front perspective view of the battery pack according to our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevation view thereof;

FIG. 7 is a front elevation view thereof; and,

FIG. 8 is a top rear perspective view thereof.

The broken lines depict portions of the battery pack that form no part of the claimed design. 

CLAIM The ornamental design for a battery pack, as shown and described. 